· Fig. 2 b shows the Fourier transform infrared spectra of CMCS, Kaolin, C 10 K 0 and C 9 K 1.In the CMCS spectrum, two strong absorption peaks at 1615 cm –1 and 1426 cm –1 were COO – asymmetric and symmetric stretching vibrations peak [33], which were the typical characteristic peaks of carboxyl group in CMCS, indicating that chitosan
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· The temperature effect on Cu adsorption and desorption on kaolinite has been investigated at four temperatures (8C, 25C, 30C and 40C). The clay sample was saturated with Ca. Copper was sorbed from
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· For kaolin, prominent diffraction peaks of kaolinite appear at 2θ = 13.53 and 24.9 , which is in agreement with the literature (Jiang et al., 2010; Jiang et al., 2009; Kumar and Lingfa, 2020). The reflection at 2θ = 26.7° refers to the presence of quartz in the kaolin sample ( Zhang et al., 2018 ).
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· 1. Introduction Kaolinite, one of the most abundant clay minerals on earth's crust, is a promising replacement of the CO 2 intensive clinker after proper calcination. Thermal decomposition of kaolinite has been studied over the years (Insley and Ewell, 1935, Brindley and Nakahira, 1958, Rashad, 2013).).
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· of 1,2,4-triazole in methanol modified-kaolinite: Application for copper corrosion inhibition in concentrated New hybrid kaolinite was obtained for the first time by intercalation of 1,2,4
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80 values of copper ore, kaolinite and montmorillonite were 34, 20 and 30 µm, respectively. A suspension containing 1 g/L sample Denver flotation machine in a 1.5 L glass cell. The agitation speed was set at 1350 r/min. The pulp containing 10% solid cell and
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JXSC Mine Machinery Factory is a professional gold mining equipment manufacturer in China, which was founded in 1985. We design the flowchart and supply the solutions for your mining ores, and custom the equipment to fit all your needs to treat different mineral ores. The main mining euqipment we supply includes the stone crusher machine
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· Water contamination by organic dyes has become a reason for severe environmental pollution and has been threatening the aquatic ecosystem. In this study, kaolin-supported silver nanoparticle (Ag-NP) composites were synthesized by a facile two-step adsorption–reduction method through the reduction of silver ions adsorbed onto
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Biomass Conversion and Biorenery 1 3 conditions. Although the mineral acids showed the relatively high hydrolysis eciency of cellulose, there had some draw-backs such as dicult separation and equipment corrosion [15, 16]. Up to now, various solid acids
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· The potentiometric titration curves of EPS, kaolinite, and Kao + EPS are shown in Fig. 4.The buffering capacity of kaolinite was slightly lower than that of Kao + EPS. The buffering capacity of pure EPS was far higher than that of pure kaolinite or Kao + EPS. Table 1 shows the fitting results of the potentiometric titration data using FITEQL4
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· The copper-contaminated kaolinite soil was loaded into the EK cell after 72 h (Altaee et al., 2008). All the tests were performed with an initial moisture content of 100 %. Compost (Searles 10 L, Organic Compost), purchased from Bunnings Warehouse Ltd (Australia), was used as supplied.
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Kaolinite is a magma-safe pink-red stone, much like bauxite, found as large clusters in sedimentary layers. Kaolinite has a material value of 1 like most stone, but can be made into medium value porcelain goods at a kiln or magma kiln . Potters ordered to make clay or ceramic goods will use the closest source of clay, fire clay, or kaolinite by
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· The addition of kaolinite increased ionic strength and water recovery. One reason for the increase of ionic strength could be the reaction of the OH −, from the dissociation of lime and the ionization of the CO 3 2− from soda ash, with the edges of the kaolinite and some extra quantities of lime and soda would be required to increase pH
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· The solutions of heavy metals were applied to the kaolinite at 1:10 (solid:solution ratio) (Yong et al. 1992), i.e., 40 g of dry kaolinite and 400 mL of solutions. The mixed solutions are mounted on the stirrer plate during experimental period, to prevent any possible sedimentation and to provide proper agitation.
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· Kaolinite is a layered silicate material with a Janus character and has been directly used as the solid catalyst for the hydrolysis of cellulose in our previous work. Reducing sugar (RS) is one of the most important intermediates for the utilization of cellulose. In the present study, metal ions dispersed on kaolinite was easily prepared
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1. Use a forklift or an excavator to send the raw materials into the hopper, and then the feeder below feeds the raw materials to the trough washing machine through the belt conveyor. The main function is to disperse, stir and clean the agglomerated kaolin. 2. Feed the material to the scrubber for further washing.
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· Fig. 2 also shows that copper recovery slightly decreased from 82.8% in the presence of quartz to 81.0% in the presence of kaolinite, while gold recovery increased from 80.4% in the presence of quartz to 88.9% in
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· In contrast to bentonite, increasing kaolin content in Telfer clean ore slightly lowered the flotation recovery, but reduced the copper grade substantially. In Fig. 2 (b) with an increase in kaolin content in the ore from 0 to 25 wt.%, the copper grade decreased from 5% to 2.4% in the first concentrate.
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· This study is the first comprehensive summary of the application of kaolinite in the environmental field. The review also illustrates the efficiency and mechanisms of coupling naturally/modified kaolinite with nanomaterials, and the limitation of the current use of kaolinite. Review. Catalysts 2023, 13, 123.
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· This paper presents the results of acidic leaching of kaolinite from the flotation waste of the RTB Bor copper mine, Serbia. The kaolinitic concentrate from the flotation waste contains 32% Al2O3
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· In this study, graphene nanoplate-kaolin-sodium alginate (GKS) bio-composite adsorbent was prepared, and the copper removal from wastewater by the adsorption method was investigated.
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· In this study, we trained machine- and deep-learning models on XRD data to predict the abundance of kaolinite and halloysite from FTIR, chemical composition, and brightness data. The case study is from the Cloud Nine kaolinite–halloysite deposit, Noombenberry Project, Western Australia.
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: Xiang-Ping Kong, Juan WangThe flotation purification process can effectively remove iron, titanium, and carbon impurities in kaolin, enabling the recovery and reuse of low-grade kaolin resources such as coal
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• Copper dispersed kaolinite by treatment between 353 and 623 K shows a broad plateau of TRS yields. • Copper dispersed kaolinite also presents the high regeneration stability. • Cuprous species make the C-O bond cleavage easily by attacking the positively
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· Mobile organic macromolecules and inorganic particles may act as carriers of strongly sorbing contaminants in subsurface materials, posing a potential facilitated transport risk. This study examined the influence of humic acid (HA) and kaolinite colloid on copper ion transport in saturated porous media. Column experiments were conducted to
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· Kaolinite is the least reactive clay (Suraj et al., 1998). However, its high pH dependency enhances or inhibits the adsorption of metals according to the pH of the environment (Mitchell, 1993), and this metal adsorption is usually accompanied by the release of hydrogen (H +) ions from the edge sites of the mineral.
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· [email protected]. Abstract. The temperature effect on Cu adsorption and desorption on kaolinite has been investigated at four. temperatures (8 C, 25C, 30C and 40C). The clay sample was saturated
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The aim of this research was to determine the antimicrobial activity of kaolinite modified with antimicrobial compounds against Gram positive and Gram negative bacteria. Copper kaolinite (Cu-kaolinite) was prepared by loading raw kaolinite with copper nitrate trihydrate (CuNO3) while surfactant modified Cu-kaolinite (SM-Cu-kaolinite) was
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For natural aquatic systems, the distribution of shape, transport, fate and bioavailability of heavy metals such as copper, lead and cadmium strongly depend on the distribution tendency of metals on to particulate surfaces. In this paper, an experimental and modeling study of copper(Ⅱ) adsorption on kaolinite, a common and important clay mineral, was
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· The removal of copper ions from aqueous solutions by kaolinite was investigated by using a batch-type method. Effects of factors such as pH, ionic strength, temperature, acid-activation and calcination on copper adsorption were investigated. The uptake of copper was determined from changes in concentration as measured by atomic
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